package thread;

/**
 * 互斥锁
 * 当使用多个synchronized锁定多个代码片段，并且指定的锁对象相同时，那么这些代码片段
 * 就是互斥的，即：多个线程不能同时执行他们
 *
 */
public class SyncDemo4 {
    public static void main(String[] args) {
        Boo boo = new Boo();
        Thread t1 = new Thread(){
            public void run(){
                boo.methodA();
            }
        };
        Thread t2 = new Thread(){
            public void run(){
                boo.methodB();
            }
        };
        t1.start();
        t2.start();
    }
}
class Boo{
    public void methodA() {
        synchronized (this) {
            Thread t = Thread.currentThread();
            System.out.println(t.getName() + ":执行A方法");
            try {
                Thread.sleep(1000);
                System.out.println(t.getName()+"A执行完毕");
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
        }
    }
    public void methodB(){
        synchronized (this) {
            Thread t = Thread.currentThread();
            System.out.println(t.getName() + "执行B方法");
            try {
                Thread.sleep(5000);
                System.out.println(t.getName()+"B执行完毕");
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
        }
    }
}